37.808

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37.808 is a precision frequency control technology. It is mainly used in the design of high precision frequency control and synchronization for the application of laser scanning, ranging, communications and related digital equipment. It is used for applications that require accurate phase locking, precise determining of signal frequency, signal synchronization, and time-base generation.

The 37.808 application field is mainly composed of Frequency Synthesizers/Generators, Frequency Synthesizers/Counters, Frequency Synthesizers/Multi-Channel Generators, Frequency Synthesizers/Multi-Channel Counters, Frequency Synthesizers/Multi-Channel Simulators, Frequency Synthesizers/More Sources and Frequency Synthesizers/Multi-Channel Simulators. These applications can be used for both commercial and industrial purposes. For industrial purposes, 37.808 is primarily used in industries such as aerospace, defense and telecommunications.

The working principle of 37.808 is based on the principle of phase-locked loop (PLL). PLL is a type of servo system that uses the input signal to maintain the relationship between the output pitch and the input signal. PLL determines the output frequency by comparing the input signal to the output feedback signal. When the reference signal\'s edge is detected, it compares the frequency with the feedback signal and adjusts the output frequency accordingly.

In 37.808, the split-amplitude output starting from the mixer is captured by a unit cell that consists of an operational amplifier, an active filter of peak detector, a self-Gating gate and the oscillator. The output frequency is determined by the feedback signal from the peak detector and the self-gating gate.The current trend is for the operational amplifier to be replaced with a voltage-controlled oscillator (VCO) and associated circuitry.

The application of 37.808 includes communication systems, navigation systems, and synchronous communication systems. For communication systems, 37.808 can be used in the design of high-precision maser/ RF phase shifters, beam steering Phased Array systems, Frequency Stop Systems (FSS), frequency modulation multiplex systems, and high accuracy Frequency synthesizers. For navigation systems, PLL is used to detect and track the target signals and to generate accurate with synchronous signals. For synchronous communication systems, 37.808 provides simultaneous synchronization and time synchronization of multiple apparatus.

In conclusion, 37.808 is a valuable tool for building precision frequency control systems. Used in combination with other technologies such as PLL, VCO, and active filters, its application can produce accurate frequency control and synchronization for a variety of applications, including communications, navigation, and synchronous communication systems.

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